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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

α decay producing 208Pb. The parent nuclide is in the decay series produced by 232Th. The only naturally occurring isotope of thorium.

To determine

The alpha decay producing 208Pb

Explanation

Formula Used:

  A = N + Z

Where A is atomic mass number

Z = Number of protons in a nucleus

In the expression below:

  XZAN

Z = Number of protons in a nucleus

X = symbol for the element

We know that

  A = N + Z

Where A is atomic mass number

The atomic mass ofP84212a128is 212 and

  A = 212 Z = 84

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